Footwear upper



FIG. 1 is a perspective view of the footwear upper embodying the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

FIGS. 1-6 show a sole and strap anchor portions in broken lines. The sole and strap anchor portions are shown for environmental purposes and do not form any part of the claimed design. 

The ornamental design for footwear upper, as shown and described. 